First Author | Sharma A | Year | 2012 |
Journal | J Immunol | Volume | 188 |
Issue | 8 | Pages | 3859-68 |
PubMed ID | 22492686 | Mgi Jnum | J:184130 |
Mgi Id | MGI:5320342 | Doi | 10.4049/jimmunol.1103729 |
Citation | Sharma A, et al. (2012) T cell factor-1 and beta-catenin control the development of memory-like CD8 thymocytes. J Immunol 188(8):3859-68 |
abstractText | Innate memory-like CD8 thymocytes develop and acquire effector function during maturation in the absence of encounter with Ags. In this study, we demonstrate that enhanced function of transcription factors T cell factor (TCF)-1 and beta-catenin regulate the frequency of promyelocytic leukemia zinc finger (PLZF)-expressing, IL-4-producing thymocytes that promote the generation of eomesodermin-expressing memory-like CD8 thymocytes in trans. In contrast, TCF1-deficient mice do not have PLZF-expressing thymocytes and eomesodermin-expressing memory-like CD8 thymocytes. Generation of TCF1 and beta-catenin-dependent memory-like CD8 thymocytes is non-cell-intrinsic and requires the expression of IL-4 and IL-4R. CD8 memory-like thymocytes migrate to the peripheral lymphoid organs, and the memory-like CD8 T cells rapidly produce IFN-gamma. Thus, TCF1 and beta-catenin regulate the generation of PLZF-expressing thymocytes and thereby facilitate the generation of memory-like CD8 T cells in the thymus. |